gialla e grigio chiaro

Pink tourmaline gem

5 cm and includes a chain

This specimen is suitable for being mounted on rings as a solitaire or point light

Rubino grezzo 17,00 ct ciuccio gialla e grigio chiaroThe gem appears included when observed with a 10x lens: presence of blue flashes caused by the treatment and other natural characteristics. The glassy appearance of its surface is caused by the heating treatment in the presence of fluxing materials, such as borax, in which the rough stones are immersed. These fluxes allow recrystallization and internal fractures in the ruby, but having a lower melting point than the gem, they dissolve to form a glassy